ai_flags in BSD/OS

[Julien ÉLIE]

Hi,

> I would use INN_FUNC_GETADDRINFO_ADDRCONFIG
> for the name of the macro, HAVE_GETADDRINFO_ADDRCONFIG for the define, and
> separate the source into a separate define.  See, for instance,
> m4/inet-ntoa.m4 for a similar sort of probe.  (Although feel free to use
> INN's indentation style for the source snippet.)
>
> Then, in include/portable/socket.h, you can do something like:

Thanks, Russ, for your detailed information.
It works pretty well.



It looks as though my autoconf 2.61 were broken:
    struct addrinfo hints, *ai;
is not understood, contrary to:
    struct addrinfo hints;
    struct addrinfo *ai;



The first one gives:

cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#if STDC_HEADERS || HAVE_STRING_H
# include <string.h>
#endif

int
main(int argc, char **argv) {
    struct addrinfo hints
_ACEOF
rm -f conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  *ai;

    memset(&hints, 0, sizeof(hints));
    hints.ai_family = AF_UNSPEC;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_flags = AI_ADDRCONFIG;
    return getaddrinfo("localhost", NULL, &hints, &ai) != 0;
}



Very weird...

-- 
Julien ÉLIE

« L'homme a imaginé le cercle avant de savoir que la terre était ronde.
  Ça prouve quand même une certaine faculté d'invention. » (Jacques Sternberg)